修复小数位不存在报错的情况

ipmanking · Mar 7, 2019 · 27356d1 · 27356d1
1 parent 2c6b918
commit 27356d1
Showing 1 changed file with 5 additions and 1 deletion.
diff --git a/php/15_binary/binary.php b/php/15_binary/binary.php
@@ -86,7 +86,11 @@ function squareRoot($number)
 function getDecimalPlaces($number)
 {
     $temp = explode('.', $number);
-    return strlen($temp[1]);
+    if (isset($temp[1])) {
+        return strlen($temp[1]);
+    }
+
+    return 0;
 }
 
 // 测试二分查找给定值